Crappy online
Lack of easy cloud storage for some titles (Pokemon, Animal Crossing, Splatoon 2)
Eshop could be improved with a rating system, reviews, better sessions, etc
Legacy 1st party games locked in a very bad subscription model
More beautiful OS
Not true complains about games, there are good games and bad games just like any other successful system
EDIT: And how could I forget joycon drift? So annoying smh